En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - September 03, 2010

From: Rosenberg, TX
Region: Southwest
Topic: Trees
Title: How can I tell the age of a Pecan tree in Rosenberg, TX?
Answered by: Jimmy Mills

QUESTION:

How can I tell the age of a Pecan tree? I live on the Brazos River and have a lot of large Pecan trees but the largest is approx. 11 ft. around.

ANSWER:

The answer depends on how precise you want to be. The most accurate method would be to cut down the tree and count the growth rings. That sounds a little drastic, so I will give you a couple of alternatives

This link suggests that there is a good correlation between the circumference of the tree and its age (circumference in inches equals age in years), and its easy enough to measure the circumference of the tree. Or this link suggests a similar correlation between the diameter of the tree and its age. You'll have to use some math skills to determine the diameter  ( d = C/pi).

The third method invovles extracting a core sample from the trunk of the tree using an increment borer. This technique is commonly used by foresters as a management tool in forests. You of course would need to have an increment borer and some expertise in using it and in handling and analyzing the core once it is obtained.

I've included links to the University of Tennesee and Auburn University for extensive descriptions on the use of an increment borer.

If you choose to go the increment borer route, the folks at the Fort Bend county office of the Texas AgriLife Extension Service or the Houston office of the Texas Forest Service may be able to help.

 

More Trees Questions

Oak sprouts in flower bed in Colleyville TX
April 04, 2011 - We have a raised flower bed in our back yard that includes 2 live oak trees. We have a TON of shoots that keep popping up and make our bed look very untidy. My husband doesn't think the shoots are ...
view the full question and answer

Trees for property in Nevada
April 06, 2013 - Mr. Smarty Plants: I would like to plant trees in between Crepe Myrtles than put up a fence along the paved road. The temperature ranges from 27'F to 130'F. It is a full sun all day and I will i...
view the full question and answer

Planting Anacacho orchid tree in Llano, TX
October 05, 2011 - Re Bauhinia lunarioides: I'm trying to pick a good site in Llano Co for a 5 gal tree I received as a gift. Your plant database says part shade. The arid zone trees publication you reference in a...
view the full question and answer

Identity of tree in South Carolina
August 18, 2015 - I don't know if this is native as I'm new to South Carolina. This is a tree about 40' tall. The leaves are trilobal, 10" to a foot across/long and are trilobal, not glossy and have big veins. T...
view the full question and answer

Eastern red cedar for indoor Christmas tree
November 06, 2007 - I would love to have a live b&b or container tree for a Christmas tree, then plant it in the ground after Christmas. Would a Eastern Cedar survive if I brought it inside for a couple of weeks before p...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center